Hello.
I am sorry to hear you are having problems with configuring your Tic for your application.
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The input hysteresis is turned off by default; did you enable and configure it? If so, what value did you set it to? As mentioned in the “Analog/RC input handling” section of the Tic user’s guide, one way to choose a good hysteresis value is to look at the “Input after averaging” variable displayed in the Tic Control Center, see how much it varies when you are not moving the input, and set the hysteresis value to something larger than that.
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Yes, as described in the “Homing” section of the guide, the current position is set to the 0 position at the end of the homing procedure. To use the full range of your potentiometer, you can adjust the scaling setting in the “input and motor settings” tab of the Tic Control Center. I suggest following the instructions I posted here for doing that.
If you continue having problems to get it to behave how you want, could you post a copy of your settings file, as well as a description of what it is doing differently from what you want? You can save a copy of your settings file from the “File” drop-down menu of the Tic Control Center while the controller is connected.
Brandon